US11458146B2 - Compositions and methods for the treatment of myelin related and inflammation related diseases or disorders - Google Patents

Compositions and methods for the treatment of myelin related and inflammation related diseases or disorders Download PDF

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US11458146B2
US11458146B2 US16/477,826 US201816477826A US11458146B2 US 11458146 B2 US11458146 B2 US 11458146B2 US 201816477826 A US201816477826 A US 201816477826A US 11458146 B2 US11458146 B2 US 11458146B2
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hydroxycholesterol
oxysterol
oxysterols
disease
inflammation
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Eric Benner
Simon Gregory
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Duke University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
    • A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

Definitions

  • the present disclosure relates to compounds, compositions, and methods for treating diseases and/or disorders related to myelin injury, such as neonatal brain injury, traumatic brain injury, spinal cord injury, cerebral palsy, seizures, cognitive delay, multiple sclerosis, stroke, autism, leukodystrophy, schizophrenia and bipolar disorder.
  • the present disclosure also relates to compounds, compositions, and methods for treating diseases and/or disorders related to inflammation, such as necrotizing enterocolitis, mesenteric ischemia, inflammatory bowel diseases such as Crohn's disease and ulcerative colitis, lymphocytic colitis, Celiac disease, Behcet's disease, rheumatoid arthritis, psoriasis, and autoimmune thyroid disease.
  • Myelin injury is the most common form of brain injury impacting neurodevelopment in premature infants. Currently there are no effective therapies for myelin injuries.
  • necrotizing enterocolitis which is characterized by bowel wall injury and/or necrosis, inflammation of the bowel, and subsequent invasion of the bowel wall with gut microbes, which leads to sepsis.
  • necrotizing enterocolitis is the most common cause of surgical emergencies within this population.
  • a method of treating diseases or disorders related to inflammation in a subject in need thereof comprising administering a therapeutically effective amount of at least one oxysterol.
  • compositions comprising an oxysterol, and methods of using the pharmaceutical compositions for treatment of diseases and/or disorders related to inflammation.
  • FIG. 1A is a series of images of fluoromyelin (Invitrogen) staining of myelin, which show decreased myelination of the corpus callosum (dashed lines) in sepsis mice at p25.
  • FIG. 1B is a quantification of the number of mature oligodendrocytes in 25HC-treated mice and septic injured mice.
  • FIG. 2A is a graph showing results of mass spectrometry experiments to analyze oxysterol standards.
  • FIG. 2B is a graph depicting the measurement of different oxysterols in human breast milk.
  • FIG. 3 is a graph depicting the measurement of different oxysterol concentrations in human breast milk.
  • FIG. 4A is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of 22(S)HC.
  • FIG. 4B is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of 22(R)HC.
  • FIG. 4C is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of 24HC.
  • FIG. 4D is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of 25HC.
  • FIG. 4E is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of 27HC.
  • FIG. 4F is a graph illustrating the results of liquid chromatography tandem-mass spectrometry analysis of oxysterols in human breast milk, which shows detection of cholesterol.
  • FIG. 5 is a western blot analysis. Stem cells were treated with oxysterols at doses indicated for 5 days then allowed to differentiate for 18 days. Protein lysates were probed for oligodendrocyte-associated proteins CNPase and myelin basic protein (MBP).
  • CNPase oligodendrocyte-associated proteins
  • MBP myelin basic protein
  • FIG. 6A is a series of confocal micrographs showing differentiated stem cells that were stained for CNPase (green) and myelin basic protein (MBP, red).
  • FIG. 6B is a quantification of the number of CNPase+ oligodendrocytes from computer selected 40 ⁇ fields.
  • FIG. 7 is a Western blot showing the 20HC inhibition of NF ⁇ B pathway in primary splenic monocytes.
  • Primary monocytes were exposed to media, 20HC (24 hour)+LPS (500 ng/ml), or LPS alone for 4 hours.
  • 20HC prevented I ⁇ B degradation and p65 phosphorylation in LPS treated cells.
  • FIGS. 8A-G are graphs of flow cytometry analysis of the effect of oxysterols on the augmentation of TH17. 20HC (C) and 24HC (E) decrease TH17 polarization. Low doses of 25HC (F) promote TH17 polarization.
  • FIG. 9A is a graph illustrating attenuation of EAE clinical score in 20HC-treated mice (bottom squared line) compared to control mice (top dotted line) over a period of 46 days; dots on 20HC treatment group indicate days at which three 20HC-treated mice displayed symptoms.
  • FIG. 9B is a graph which shows the number of mice in the control and 20HC treatment groups that developed EAE. Significance was determined using individual t testing each day ( FIG. 9A , p ⁇ 0.05) or Fisher exact test ( FIG. 9B ).
  • oxysterols useful for the treatment of disorders and diseases related to injury to myelin and disorders and diseases related to inflammation.
  • the disclosed oxysterols are oxidized derivatives of cholesterol.
  • the disclosed oxysterols can be used to repair injured myelin by promoting oligodendrogenesis from neural stem cells and/or oligodendrocyte precursor cell populations. Injured myelin has been implicated in a number of different diseases and disorders including, but not limited to, neonatal brain injury, traumatic brain injury, spinal cord injury, cerebral palsy, seizures, cognitive delay, multiple sclerosis, stroke, autism, leukodystrophy, schizophrenia, and bipolar disorder.
  • the sonic hedgehog (SHH) signaling pathway has been shown to promote oligodendrogenesis in vitro and in vivo.
  • oxysterols are natural ligands for the SHH pathway, and recent studies in fibroblast cell culture systems demonstrated that the oxysterols 20 ⁇ -hydroxycholesterol and 22 ⁇ -hydroxycholesterol can activate the SHH pathway via direct binding to smoothened (SMO).
  • SMO smoothened
  • PTCH1 negative regulator Patched1
  • compounds that promote oligodendrogenesis can be useful in treating diseases related to myelin pathology.
  • the disclosed oxysterols can also be used to treat diseases that are related to inflammation.
  • a disease is “related to inflammation” if at least one symptom or manifestation of the disease involves inflammation of one or more tissues or organs.
  • Diseases related to inflammation that can be treated by oxysterols include, but are not limited to, necrotizing enterocolitis, mesenteric ischemia, inflammatory bowel diseases (e.g., Crohn's disease and ulcerative colitis), lymphocytic colitis, Celiac disease, Behcet's disease, rheumatoid arthritis, psoriasis, and autoimmune thyroid disease.
  • TLR4 Toll-like receptor 4
  • NEC necrotizing enterocolitis
  • TLR4 signaling leads to an intestinal infiltration of CD4+IL-17+ lymphocyte populations (TH17) in human (NEC) cases.
  • TH17 populations appear to be required for the development of (NEC) in animal models.
  • Oxysterols have been found that prevent TLR4-dependent NF ⁇ B activation in epithelial cells, and to prevent the polarization of na ⁇ ve CD4 T cells into the TH17 population.
  • NF ⁇ B activation and TH17 infiltration can lead to inflammation.
  • compounds that can augment NF ⁇ B activation and TH17 polarization can be useful in treating diseases related to inflammation.
  • human breast milk may be an appropriate vehicle for the administration of oxysterol therapy to infants in need of such therapy.
  • Multiple naturally occurring oxysterols are identified in human breast milk, increasing the viability of employing its use in therapies for neonatal brain injuries and related disorders and diseases, and for use in therapies for inflammation related disorders and diseases.
  • Most infants born prematurely are typically administered human breast milk for nourishment.
  • breast milk or infant formula supplemented with additional amounts of oxysterols may be beneficial for promoting brain development or reducing inflammation in prematurely born infants, regardless of suspected or known brain injury or inflammatory disease.
  • oxygen containing group such as, but not limited to, at least one of a hydroxyl, oxo, alkoxy, epoxy or carboxy group.
  • parenterally refers to modes of administration which include intravenous, intramuscular, intraperitoneal, intradermal, subcutaneous, intraarticular injection, and infusion.
  • the modifier “about” used in connection with a quantity is inclusive of the stated value and has the meaning dictated by the context (for example, it includes at least the degree of error associated with the measurement of the particular quantity).
  • the modifier “about” should also be considered as disclosing the range defined by the absolute values of the two endpoints.
  • the expression “from about 2 to about 4” also discloses the range “from 2 to 4.”
  • the term “about” may refer to plus or minus 10% of the indicated number.
  • “about 10%” may indicate a range of 9% to 11%, and “about 1” may mean from 0.9-1.1.
  • Other meanings of “about” may be apparent from the context, such as rounding off, so, for example “about 1” may also mean from 0.5 to 1.4.
  • the number of carbon atoms in a hydrocarbyl substituent is indicated by the prefix “C x -C y -”, wherein x is the minimum and y is the maximum number of carbon atoms in the substituent.
  • C 1 -C 3 -alkyl refers to an alkyl substituent containing from 1 to 3 carbon atoms.
  • groups and substituents thereof may be selected in accordance with permitted valence of the atoms and the substituents, such that the selections and substitutions result in a stable compound, e.g., which does not spontaneously undergo transformation such as by rearrangement, cyclization, elimination, etc.
  • each intervening number there between with the same degree of precision is explicitly contemplated.
  • the numbers 7 and 8 are contemplated in addition to 6 and 9, and for the range 6.0-7.0, the number 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, and 7.0 are explicitly contemplated.
  • Oxysterols are oxidized derivatives of cholesterol.
  • Oxysterols useful for the methods and compositions of the present disclosure may be oxidized derivatives of cholesterol wherein cholesterol is oxidized at any carbon of cholesterol.
  • Oxysterols useful for the methods and compositions of the present disclosure may be substituted with an oxygen-containing group, such as, but not limited to, at least one of a hydroxyl, oxo, alkoxy, epoxy or carboxy group.
  • Oxysterols may be important in many biological processes, including cholesterol homeostasis, atherosclerosis, sphingolipid metabolism, platelet aggregation, apoptosis, and protein prenylation, though their roles are often poorly understood. Oxysterols are lipophilic and cross the blood brain barrier. They are naturally present in small amounts in the brain and they are known ligands for the Liver X Receptor (LXR) and Sonic Hedgehog (SHH) signaling pathways. Oxysterols may be oxidized at sites on the tetracyclic ring structure or on the C 20-27 aliphatic chain. Specific oxysterols include the following:
  • any oxysterol may be used in connection with the methods described herein.
  • the oxysterol may be selected from the group consisting of: 20 ⁇ -hydroxycholesterol; 22(R)-hydroxycholesterol; 22(S)-hydroxycholesterol; 24(R)-hydroxycholesterol; 24(S)-hydroxycholesterol; 25-hydroxycholesterol; and 27-hydroxycholesterol; or a pharmaceutically acceptable salt thereof.
  • the oxysterol compound may exist as a stereoisomer wherein asymmetric or chiral centers are present.
  • the stereoisomer is “R” or “S” depending on the configuration of substituents around the chiral carbon atom.
  • R and S used herein are configurations as defined in IUPAC 1974 Recommendations for Section E, Fundamental Stereochemistry, in Pure Appl. Chem., 45: 13-30 (1976).
  • Stereoisomers include enantiomers and diastereomers, and mixtures of enantiomers or diastereomers.
  • Individual stereoisomers of the compounds may be prepared synthetically from commercially available starting materials, which contain asymmetric or chiral centers or by preparation of racemic mixtures followed by methods of resolution well-known to those of ordinary skill in the art. These methods of resolution are exemplified by (1) attachment of a mixture of enantiomers to a chiral auxiliary, separation of the resulting mixture of diastereomers by recrystallization or chromatography, and optional liberation of the optically pure product from the auxiliary as described in Furniss, Hannaford, Smith, and Tatchell, “Vogel's Textbook of Practical Organic Chemistry”, 5th edition (1989), Longman Scientific & Technical, Essex CM20 2JE, England, (2) direct separation of the mixture of optical enantiomers on chiral chromatographic columns, or (3) fractional recrystallization methods.
  • oxysterol compound may possess tautomeric forms, as well as geometric isomers, and that these also constitute an aspect of the invention.
  • the present disclosure also includes an isotopically-labeled compound, which is identical to the recited oxysterols, but for the fact that one or more atoms are replaced by an atom having an atomic mass or mass number different from the atomic mass or mass number usually found in nature.
  • isotopes suitable for inclusion in the compounds of the invention are hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, fluorine, and chlorine, such as, but not limited to 2 H, 3 H, 13 C, 14 C, 15 N, 18 O, 17 O, 31 P, 32 P, 35 S, 18 F, and 36 Cl, respectively.
  • the compound may incorporate positron-emitting isotopes for medical imaging and positron-emitting tomography (PET) studies for determining the distribution of receptors.
  • positron-emitting isotopes that can be incorporated in the disclosed oxysterols are 11 C, 13 N, 15 O, and 18F.
  • Isotopically-labeled oxysterols can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described in the accompanying Examples using appropriate isotopically-labeled reagent in place of non-isotopically-labeled reagent.
  • Oxysterols of the present disclosure can promote the differentiation of oligodendrocytes from neural stem cells.
  • Oligodendrocytes are a type of neuroglia. They function to provide support and insulation to axons in the central nervous system by creating the myelin sheath. Oligodendrocytes arise during development from oligodendrocyte precursor cells. Most oligodendrocytes develop during embryogenesis and early postnatal life from restricted periventricular germinal regions.
  • Oligodendrocytes are found in the central nervous system (CNS) and originate from the ventral ventricular zone of the embryonic spinal cord. They are the last cell type to be generated in the CNS. Myelination is only prevalent in a few brain regions at birth and continues into adulthood. The entire process is not complete until about 25-30 years of age.
  • oligodendrocytes are closely related to nerve cells and provide a supporting role for neurons.
  • the nervous system of mammals depends on myelin sheaths, which reduce ion leakage and decrease the capacitance of the cell membrane. Myelin also increases impulse speed, as saltatory propagation of action potentials occurs at the nodes of Ranvier in between Schwann cells (of the PNS) and oligodendrocytes (of the CNS).
  • Myelinating oligodendrocytes are a part of the white matter and myelination is an important component of intelligence.
  • Oligodendrogenesis may be determined by measuring the concentration of certain biomarkers in tissue.
  • biomarkers include, for example, Oligodendrocyte Transcription Factor (OLIG2), 2′,3′-Cyclic-Nucleotide 3′-Phosphodiesterase (CNPase), and Myelin Basic Protein (MBP).
  • OLIG2 Oligodendrocyte Transcription Factor
  • CNPase 2′,3′-Cyclic-Nucleotide 3′-Phosphodiesterase
  • MBP Myelin Basic Protein
  • Oligodendrocyte transcription factor (OLIG2) is a basic helix-loop-helix transcription factor encoded by the Olig2 gene.
  • the protein is of 329 amino acids in length, 32 kDa in size and contains 1 basic helix-loop-helix DNA-binding domain.
  • the expression of OLIG2 is mostly restricted in central nervous system, and is well known for determining oligodendrocyte differentiation.
  • OLIG2 is mostly expressed in restricted domains of the brain and spinal cord ventricular zone which give rise to oligodendrocytes and specific types of neurons. During embryogenesis, OLIG2 first directs motor neuron fate by establishing a ventral domain of motor neuron progenitors and promoting neuronal differentiation. OLIG2 then switches to promoting the formation of oligodendrocyte precursors and oligodendrocyte differentiation at later stages of development.
  • CNPase 2′,3′-Cyclic-nucleotide 3′-phosphodiesterase
  • CNPase is expressed exclusively by oligodendrocytes in the CNS, and the appearance of CNPase seems to be one of the earliest events of oligodendrocyte differentiation. CNPase may play a critical role in the events leading up to myelination.
  • Myelin basic protein is important in the process of myelination of nerves in the nervous system.
  • the myelin sheath is a multi-layered membrane, unique to the nervous system that functions as an insulator to greatly increase the velocity of axonal impulse conduction.
  • MBP maintains the correct structure of myelin, interacting with the lipids in the myelin membrane.
  • the disclosed oxysterols can promote the formation of oligodendrocytes such that a treated subject has an increase of oligodendrocyte formation.
  • the increase in oligodendrocyte formation may be measured relative to oligodendrocyte levels pretreatment in the subject.
  • the increase of oligodendrocyte formation may be measured relative to oligodendrocyte levels in an untreated subject.
  • the increase in oligodendrocyte formation may be measured relative to oligodendrocyte levels in an untreated control.
  • the disclosed oxysterols may promote an increase in oligodendrocyte formation of at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 100%, at least 110%, at least 120%, at least 130%, at least 140%, at least 150%, at least 160%, at least 170%, at least 180%, at least 190%, at least 200%, at least 250%, at least 300%, at least 450%, or at least 500%.
  • the disclosed compounds may exist as pharmaceutically acceptable salts.
  • pharmaceutically acceptable salt refers to salts or zwitterions of the compounds which are water or oil-soluble or dispersible, suitable for treatment of disorders without undue toxicity, irritation, and allergic response, commensurate with a reasonable benefit/risk ratio and effective for their intended use.
  • the salts may be prepared during the final isolation and purification of the compounds or separately by reacting an amino group of the compounds with a suitable acid.
  • a compound may be dissolved in a suitable solvent, such as but not limited to methanol and water and treated with at least one equivalent of an acid, like hydrochloric acid.
  • the resulting salt may precipitate out and be isolated by filtration and dried under reduced pressure.
  • salts include acetate, adipate, alginate, citrate, aspartate, benzoate, benzenesulfonate, bisulfate, butyrate, camphorate, camphorsulfonate, digluconate, glycerophosphate, hemisulfate, heptanoate, hexanoate, formate, isethionate, fumarate, lactate, maleate, methanesulfonate, naphthylenesulfonate, nicotinate, oxalate, pamoate, pectinate, persulfate, 3-phenylpropionate, picrate, oxalate, maleate, pivalate, propionate, succinate, tartrate, thrichloroacetate, trifluoroacetate, glutamate, para-toluenesulfonate, undecanoate, hydrochloric
  • amino groups of the compounds may also be quaternized with alkyl chlorides, bromides and iodides such as methyl, ethyl, propyl, isopropyl, butyl, lauryl, myristyl, stearyl and the like.
  • Basic addition salts may be prepared during the final isolation and purification of the disclosed compounds by reaction of a carboxyl group with a suitable base such as the hydroxide, carbonate, or bicarbonate of a metal cation such as lithium, sodium, potassium, calcium, magnesium, or aluminum, or an organic primary, secondary, or tertiary amine.
  • a suitable base such as the hydroxide, carbonate, or bicarbonate of a metal cation such as lithium, sodium, potassium, calcium, magnesium, or aluminum, or an organic primary, secondary, or tertiary amine.
  • Quaternary amine salts can be prepared, such as those derived from methylamine, dimethylamine, trimethylamine, triethylamine, diethylamine, ethylamine, tributylamine, pyridine, N,N-dimethylaniline, N-methylpiperidine, N-methylmorpholine, dicyclohexylamine, procaine, dibenzylamine, N,N-dibenzylphenethylamine, 1-ephenamine and N,N′-dibenzylethylenediamine, ethylenediamine, ethanolamine, diethanolamine, piperidine, piperazine, and the like.
  • the disclosed oxysterols may be prepared by synthetic processes or by metabolic processes. Preparation of the compounds by metabolic processes includes those occurring in a human or animal body (in vivo) or processes occurring in vitro.
  • the compounds and intermediates may be synthesized, isolated, and purified by methods well-known to those skilled in the art of organic synthesis.
  • Examples of conventional methods for isolating and purifying compounds include, but are not limited to, chromatography on solid supports such as silica gel, alumina, or silica derivatized with alkylsilane groups, by recrystallization at high or low temperature with an optional pretreatment with activated carbon, thin-layer chromatography, distillation at various pressures, sublimation under vacuum, and trituration, as described in, e.g., “Vogel's Textbook of Practical Organic Chemistry,” 5th edition (1989), by Furniss, Hannaford, Smith, and Tatchell, Longman Scientific & Technical, Essex CM20 2JE, England.
  • a disclosed compound may have at least one basic atom or functional group, whereby the compound can be treated with an acid to form a desired salt.
  • a compound may be reacted with an acid at or above room temperature to provide the desired salt, which is deposited, and collected by filtration after cooling.
  • acids suitable for the reaction include, but are not limited to, tartaric acid, lactic acid, succinic acid, as well as mandelic, atrolactic, methanesulfonic, ethanesulfonic, toluenesulfonic, naphthalenesulfonic, benzenesulfonic, carbonic, fumaric, maleic, gluconic, acetic, propionic, salicylic, hydrochloric, hydrobromic, phosphoric, sulfuric, citric, hydroxybutyric, camphorsulfonic, malic, phenylacetic, aspartic, glutamic acid, and the like.
  • reaction conditions and reaction times for each individual step can vary depending on the particular reactants employed and substituents present in the reactants used. Specific procedures are provided in the Examples section. Reactions can be worked up in the conventional manner, e.g., by eliminating the solvent from the residue and further purifying according to methodologies generally known in the art such as, but not limited to, crystallization, distillation, extraction, trituration, and chromatography. Unless otherwise described, the starting materials and reagents are either commercially available or can be prepared by one skilled in the art from commercially available materials using methods described in the chemical literature.
  • Synthesis of the compounds of the invention can be accomplished by methods analogous to those described in the synthetic schemes described hereinabove and in specific examples.
  • an optically active form of a disclosed compound When an optically active form of a disclosed compound is required, it can be obtained by carrying out one of the procedures described herein using an optically active starting material (prepared, for example, by asymmetric induction of a suitable reaction step), or by resolution of a mixture of the stereoisomers of the compound or intermediates using a standard procedure (such as chromatographic separation, recrystallization or enzymatic resolution).
  • an optically active starting material prepared, for example, by asymmetric induction of a suitable reaction step
  • resolution of a mixture of the stereoisomers of the compound or intermediates using a standard procedure (such as chromatographic separation, recrystallization or enzymatic resolution).
  • a pure geometric isomer of a compound when required, it can be obtained by carrying out one of the above procedures using a pure geometric isomer as a starting material, or by resolution of a mixture of the geometric isomers of the compound or intermediates using a standard procedure such as chromatographic separation.
  • the disclosed compounds may be incorporated into pharmaceutical compositions suitable for administration to a subject (such as a patient, which may be a human or non-human).
  • the pharmaceutical compositions may include a “therapeutically effective amount” or a “prophylactically effective amount” of the agent.
  • a “therapeutically effective amount” refers to an amount effective, at dosages and for periods of time necessary, to achieve the desired therapeutic result.
  • a therapeutically effective amount of the composition may be determined by a person skilled in the art and may vary according to factors such as the disease state, age, sex, and weight of the individual, and the ability of the composition to elicit a desired response in the individual.
  • a therapeutically effective amount is also one in which any toxic or detrimental effects of a compound of the disclosure [e.g., an oxysterol] are outweighed by the therapeutically beneficial effects.
  • a “prophylactically effective amount” refers to an amount effective, at dosages and for periods of time necessary, to achieve the desired prophylactic result. Typically, since a prophylactic dose is used in subjects prior to or at an earlier stage of disease, the prophylactically effective amount will be less than the therapeutically effective amount.
  • a therapeutically effective amount of an oxysterol disclosed herein may be about 1 mg/kg to about 1000 mg/kg, about 5 mg/kg to about 950 mg/kg, about 10 mg/kg to about 900 mg/kg, about 15 mg/kg to about 850 mg/kg, about 20 mg/kg to about 800 mg/kg, about 25 mg/kg to about 750 mg/kg, about 30 mg/kg to about 700 mg/kg, about 35 mg/kg to about 650 mg/kg, about 40 mg/kg to about 600 mg/kg, about 45 mg/kg to about 550 mg/kg, about 50 mg/kg to about 500 mg/kg, about 55 mg/kg to about 450 mg/kg, about 60 mg/kg to about 400 mg/kg, about 65 mg/kg to about 350 mg/kg, about 70 mg/kg to about 300 mg/kg, about 75 mg/kg to about 250 mg/kg, about 80 mg/kg to about 200 mg/kg, about 85 mg/kg to about 150 mg/kg, about 90 mg/kg to about 100 mg/kg,
  • compositions may include pharmaceutically acceptable carriers.
  • pharmaceutically acceptable carrier refers to a non-toxic, inert solid, semi-solid or liquid filler, diluent, encapsulating material or formulation auxiliary of any type.
  • materials which can serve as pharmaceutically acceptable carriers are sugars such as, but not limited to, lactose, glucose and sucrose; starches such as, but not limited to, corn starch and potato starch; cellulose and its derivatives such as, but not limited to, sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; talc; excipients such as, but not limited to, cocoa butter and suppository waxes; oils such as, but not limited to, peanut oil, cottonseed oil, safflower oil, sesame oil, olive oil, corn oil and soybean oil; glycols; such as propylene glycol; esters such as, but not limited to, ethyl oleate and ethyl laurate; agar; buffering agents such as, but not limited to, magnesium hydroxide and aluminum hydroxide; alginic acid; pyrogen-free water; isotonic saline;
  • the compounds and their physiologically acceptable salts and solvates may be formulated for administration by, for example, solid dosing, eyedrop, in a topical oil-based formulation, injection, inhalation (either through the mouth or the nose), implants, or oral, buccal, parenteral, or rectal administration.
  • Techniques and formulations may generally be found in “Remington's Pharmaceutical Sciences”, (Meade Publishing Co., Easton, Pa.).
  • Therapeutic compositions must typically be sterile and stable under the conditions of manufacture and storage.
  • compositions may be in a variety of forms, suitable, for example, for systemic administration (e.g., oral, rectal, nasal, sublingual, buccal, implants, or parenteral) or topical administration (e.g., dermal, pulmonary, nasal, aural, ocular, liposome delivery systems, transdermal, or iontophoresis).
  • systemic administration e.g., oral, rectal, nasal, sublingual, buccal, implants, or parenteral
  • topical administration e.g., dermal, pulmonary, nasal, aural, ocular, liposome delivery systems, transdermal, or iontophoresis.
  • Carriers for systemic administration typically include at least one of diluents, lubricants, binders, disintegrants, colorants, flavors, sweeteners, antioxidants, preservatives, glidants, solvents, suspending agents, wetting agents, surfactants, combinations thereof, and others. All carriers are optional in the compositions.
  • Suitable diluents include sugars such as glucose, lactose, dextrose, and sucrose; diols such as propylene glycol; calcium carbonate; sodium carbonate; sugar alcohols, such as glycerin; mannitol, and sorbitol.
  • the amount of diluent(s) in a systemic or topical composition is typically about 50 to about 90%.
  • Suitable lubricants include silica, talc, stearic acid and its magnesium salts and calcium salts, calcium sulfate; and liquid lubricants such as polyethylene glycol and vegetable oils such as peanut oil, cottonseed oil, sesame oil, olive oil, corn oil and oil of theobroma.
  • the amount of lubricant(s) in a systemic or topical composition is typically about 5 to about 10%.
  • Suitable binders include polyvinyl pyrrolidone; magnesium aluminum silicate; starches such as corn starch and potato starch; gelatin; tragacanth; and cellulose and its derivatives, such as sodium carboxymethylcellulose, ethyl cellulose, methylcellulose, microcrystalline cellulose, and sodium carboxymethylcellulose.
  • the amount of binder(s) in a systemic composition is typically about 5 to about 50%/o.
  • Suitable disintegrants include agar, alginic acid and the sodium salt thereof, effervescent mixtures, croscarmelose, crospovidone, sodium carboxymethyl starch, sodium starch glycolate, clays, and ion exchange resins.
  • the amount of disintegrant(s) in a systemic or topical composition is typically about 0.1 to about 10%.
  • Suitable colorants include a colorant such as an FD&C dye.
  • the amount of colorant in a systemic or topical composition is typically about 0.005 to about 0.1%.
  • Suitable flavors include menthol, peppermint, and fruit flavors.
  • the amount of flavor(s), when used, in a systemic or topical composition is typically about 0.1 to about 1.0%.
  • Suitable sweeteners include aspartame and saccharin.
  • the amount of sweetener(s) in a systemic or topical composition is typically about 0.001 to about 1%.
  • Suitable antioxidants include butylated hydroxyanisole (“BHA”), butylated hydroxytoluene (“BHT”), and vitamin E.
  • BHA butylated hydroxyanisole
  • BHT butylated hydroxytoluene
  • the amount of antioxidant(s) in a systemic or topical composition is typically about 0.1 to about 5%.
  • Suitable preservatives include benzalkonium chloride, methyl paraben, and sodium benzoate.
  • the amount of preservative(s) in a systemic or topical composition is typically about 0.01 to about 5%.
  • Suitable glidants include silicon dioxide.
  • the amount of glidant(s) in a systemic or topical composition is typically about 1 to about 5%.
  • Suitable solvents include water, isotonic saline, ethyl oleate, glycerine, hydroxylated castor oils, alcohols such as ethanol, and phosphate buffer solutions.
  • the amount of solvent(s) in a systemic or topical composition is typically from about 0 to about 100%.
  • Suitable suspending agents include AVICEL RC-591 (from FMC Corporation of Philadelphia, Pa.) and sodium alginate.
  • the amount of suspending agent(s) in a systemic or topical composition is typically about 1 to about 8%.
  • Suitable surfactants include lecithin, Polysorbate 80, and sodium lauryl sulfate, and the TWEENS from Atlas Powder Company of Wilmington, Del.
  • Suitable surfactants include those disclosed in the C.T.F.A. Cosmetic Ingredient Handbook, 1992, pp. 587-592 ; Remington's Pharmaceutical Sciences, 15th Ed. 1975, pp. 335-337; and McCutcheon's Volume 1 , Emulsifiers & Detergents, 1994, North American Edition, pp. 236-239.
  • the amount of surfactant(s) in the systemic or topical composition is typically about 0.1% to about 5%.
  • systemic compositions include 0.01% to 50% of active agent (e.g., an oxysterol) and 50% to 99.99% of one or more carriers.
  • active agent e.g., an oxysterol
  • Compositions for parenteral administration typically include 0.1% to 10% of active agent and 90% to 99.9% of a carrier including a diluent and a solvent.
  • compositions for oral administration can have various dosage forms.
  • solid forms include tablets, capsules, granules, and bulk powders.
  • These oral dosage forms include a safe and effective amount, usually at least about 5%, and more particularly from about 25% to about 50% of actives.
  • the oral dosage compositions include about 50% to about 95% of carriers, and more particularly, from about 50% to about 75%.
  • Tablets can be compressed, tablet triturates, enteric-coated, sugar-coated, film-coated, or multiple-compressed. Tablets typically include an active component, and a carrier comprising ingredients selected from diluents, lubricants, binders, disintegrants, colorants, flavors, sweeteners, glidants, and combinations thereof.
  • diluents include calcium carbonate, sodium carbonate, mannitol, lactose and cellulose.
  • Specific binders include starch, gelatin, and sucrose.
  • Specific disintegrants include alginic acid and croscarmelose.
  • Specific lubricants include magnesium stearate, stearic acid, and talc.
  • Capsules typically include an active compound (e.g., an oxysterol), and a carrier including one or more diluents disclosed above in a capsule comprising gelatin.
  • Granules typically comprise a disclosed compound, and preferably glidants such as silicon dioxide to improve flow characteristics. Implants can be of the biodegradable or the non-biodegradable type.
  • ingredients in the carrier for oral compositions depends on secondary considerations like taste, cost, and shelf stability, which are not critical for the purposes of this invention.
  • Solid compositions may be coated by conventional methods, typically with pH or time-dependent coatings, such that a disclosed compound is released in the gastrointestinal tract in the vicinity of the desired application, or at various points and times to extend the desired action.
  • the coatings typically include one or more components selected from the group consisting of cellulose acetate phthalate, polyvinyl acetate phthalate, hydroxypropyl methyl cellulose phthalate, ethyl cellulose, EUDRAGIT® coatings (available from Rohm & Haas G.M.B.H. of Darmstadt, Germany), waxes, and shellac.
  • compositions for oral administration can have liquid forms.
  • suitable liquid forms include aqueous solutions, emulsions, suspensions, solutions reconstituted from non-effervescent granules, suspensions reconstituted from non-effervescent granules, effervescent preparations reconstituted from effervescent granules, elixirs, tinctures, syrups, and the like.
  • Liquid compositions, which may be administered orally may include an oxysterol compound disclosed herein and a carrier, namely, a carrier selected from diluents, colorants, flavors, sweeteners, preservatives, solvents, suspending agents, and surfactants.
  • Peroral liquid compositions preferably include one or more ingredients selected from colorants, flavors, and sweeteners.
  • compositions useful for attaining systemic delivery of the subject compounds include sublingual, buccal, and nasal dosage forms.
  • Such compositions typically include one or more of soluble filler substances such as diluents including sucrose, sorbitol and mannitol; and binders such as acacia, microcrystalline cellulose, carboxymethyl cellulose, and hydroxypropyl methylcellulose.
  • Such compositions may further include lubricants, colorants, flavors, sweeteners, antioxidants, and glidants.
  • Topical compositions that can be applied locally to the skin may be in any form including solids, solutions, oils, creams, ointments, gels, lotions, shampoos, leave-on and rinse-out hair conditioners, milks, cleansers, moisturizers, sprays, skin patches, and the like.
  • Topical compositions include: an oxysterol compound as disclosed herein and a carrier.
  • the carrier of the topical composition preferably aids penetration of the compounds into the skin.
  • the carrier may further include one or more optional components.
  • Transdermal administration may be used to facilitate delivery. Such transdermal administration may bypass any gut metabolism, whereby microbes may use one or more oxysterols as substrates. Transdermal administration may be in the absence of carbohydrates to avoid administering bacterial substrates that may negatively impact gut health. Accordingly, transdermal administration, via patches for example, may facilitate controlled release delivery that can bypass any metabolism that resides along the digestive tract, for example in the gut.
  • the amount of the carrier employed in conjunction with a disclosed compound is sufficient to provide a practical quantity of composition for administration per unit dose of the medicament.
  • Techniques and compositions for making dosage forms useful in the methods disclosed herein are described in the following references: Modern Pharmaceutics , Chapters 9 and 10, Banker & Rhodes, eds. (1979); Lieberman et al., Pharmaceutical Dosage Forms: Tablets (1981); and Ansel, Introduction to Pharmaceutical Dosage Forms, 2nd Ed., (1976).
  • a carrier may include a single ingredient or a combination of two or more ingredients.
  • the carrier includes a topical carrier.
  • Suitable topical carriers include one or more ingredients selected from phosphate buffered saline, isotonic water, deionized water, monofunctional alcohols, symmetrical alcohols, aloe vera gel, allantoin, glycerin, vitamin A and E oils, mineral oil, propylene glycol, PPG-2 myristyl propionate, dimethyl isosorbide, castor oil, combinations thereof, and the like.
  • carriers for skin applications include propylene glycol, dimethyl isosorbide, and water, and even more particularly, phosphate buffered saline, isotonic water, deionized water, monofunctional alcohols, and symmetrical alcohols.
  • the carrier of a topical composition may further include one or more ingredients selected from emollients, propellants, solvents, humectants, thickeners, powders, fragrances, pigments, and preservatives, all of which are optional.
  • Suitable emollients include stearyl alcohol, glyceryl monoricinoleate, glyceryl monostearate, propane-1,2-diol, butane-1,3-diol, mink oil, cetyl alcohol, isopropyl isostearate, stearic acid, isobutyl palmitate, isocetyl stearate, oleyl alcohol, isopropyl laurate, hexyl laurate, decyl oleate, octadecan-2-ol, isocetyl alcohol, cetyl palmitate, di-n-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, polyethylene glycol, triethylene glycol, lanolin, sesame oil, coconut oil, arachis oil, castor oil, acetylated lanolin alcohols, petroleum, mineral oil, but
  • Suitable propellants include propane, butane, isobutane, dimethyl ether, carbon dioxide, nitrous oxide, and combinations thereof.
  • the amount of propellant(s) in a topical composition is typically about 0% to about 95%.
  • Suitable solvents include water, ethyl alcohol, methylene chloride, isopropanol, castor oil, ethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, dimethylsulfoxide, dimethyl formamide, tetrahydrofuran, and combinations thereof.
  • Specific solvents include ethyl alcohol and homotopic alcohols.
  • the amount of solvent(s) in a topical composition is typically about 0% to about 95%.
  • Suitable humectants include glycerin, sorbitol, sodium 2-pyrrolidone-5-carboxylate, soluble collagen, dibutyl phthalate, gelatin, and combinations thereof. Specific humectants include glycerin. The amount of humectant(s) in a topical composition is typically 0% to 95%.
  • the amount of thickener(s) in a topical composition is typically about 0% to about 95%.
  • Suitable powders include beta-cyclodextrins, hydroxypropyl cyclodextrins, chalk, talc, fullers earth, kaolin, starch, gums, colloidal silicon dioxide, sodium polyacrylate, tetra alkyl ammonium smectites, trialkyl aryl ammonium smectites, chemically-modified magnesium aluminum silicate, organically-modified Montmorillonite clay, hydrated aluminum silicate, fumed silica, carboxyvinyl polymer, sodium carboxymethyl cellulose, ethylene glycol monostearate, and combinations thereof.
  • the amount of powder(s) in a topical composition is typically 0% to 95%.
  • the amount of fragrance in a topical composition is typically about 0% to about 0.5%, particularly, about 0.001% to about 0.1%.
  • Suitable pH adjusting additives include HCl or NaOH in amounts sufficient to adjust the pH of a topical pharmaceutical composition.
  • the pharmaceutical composition may include human breast milk.
  • the active pharmaceutical ingredient may be a component of human breast milk.
  • the human breast milk may thus be administered to a subject in need of the active pharmaceutical ingredient.
  • Some infants may not be able to take food or medication by mouth.
  • infants with acute brain injury are critically ill and may not be able to take food or medication by mouth.
  • the infants may also need bowel rest.
  • total parenteral nutrition may be administered through a central line.
  • TPN contains the hydration and nutrients needed to sustain life and grow the infant.
  • Calories may be delivered via carbohydrates, protein, and lipids.
  • the lipids may be administered as an intralipid emulsion.
  • Oxysterol therapy may be added to the intralipid emulsion for intravenous administration, for example, through a central line.
  • Intralipid emulsions are commercially available.
  • An example of a commercially available intralipid emulsion is a 20% fat emulsion containing soybean oil, egg yolk, phospholipids, and glycerin.
  • Other formulations that may be supplemented with oxysterols include INTRALIPID® 20% (Baxter Healthcare Corp., Deerfield, Ill.) and SMOFLIPID® (Fresenius Kabi, Bad Homburg vor derric, Germany), for example.
  • Intravenous administration of oxysterol preparations in fat emulsions may also bypass the negative effects of oxysterol metabolism in the gut.
  • the disclosed oxysterols and compositions may be used in methods for treatment of disorders and diseases related to brain injury, in particular, injury to myelin.
  • the methods of treatment may comprise administering to a subject in need of such treatment a composition comprising a therapeutically effective amount of an oxysterol.
  • oligodendrocytes which are cells which function to provide support and insulation to axons in the central nervous system by creating the myelin sheath.
  • the formation of oligodendrocytes may serve to create myelin and repair damaged myelin in subjects with injured myelin.
  • compositions may be useful for treating and preventing certain diseases and disorders in humans and animals related to myelin injury. Treatment or prevention of such diseases and disorders can be effected by promoting oligodendrogenesis in a subject, by administering a compound or composition of the disclosure, either alone or in combination with another active agent as part of a therapeutic regimen to a subject in need thereof.
  • the neonatal brain injury may include at least one of diffuse white matter injury, periventricular leukomalacia (PVL), hypoxic-ischemic encephalopathy (HIE), neonatal stroke, and grade 3-4 intraventricular hemorrhages (IVH).
  • PVL periventricular leukomalacia
  • HIE hypoxic-ischemic encephalopathy
  • IVH grade 3-4 intraventricular hemorrhages
  • the disclosed oxysterols and compositions may be used in methods for treatment of disorders and diseases related to inflammation.
  • the methods of treatment may comprise administering to a subject in need of such treatment a composition comprising a therapeutically effective amount of an oxysterol.
  • These methods augment NF ⁇ B activation and TH17 polarization.
  • augmenting NF ⁇ B activation and TH17 polarization may serve to reduce inflammation and reduce inflammation related damage in subjects with inflammatory diseases or disorders.
  • compositions may be useful for treating and preventing certain diseases and disorders in humans and animals related to inflammation. Treatment or prevention of such diseases and disorders can be effected by augmenting NF ⁇ B activation and TH17 polarization in a subject, by administering a compound or composition as described herein, either alone or in combination with another active agent as part of a therapeutic regimen to a subject in need thereof.
  • Diseases and/or disorders which may be treated and/or prevented by the disclosed methods include necrotizing enterocolitis, mesenteric ischemia, inflammatory bowel diseases including Crohn's disease and ulcerative colitis, lymphocytic colitis, Celiac disease, Behcet's disease, rheumatoid arthritis, psoriasis, and autoimmune thyroid disease.
  • Necrotizing enterocolitis remains a leading cause of death and morbidity in premature infants in the neonatal intensive care unit, and it is the most common cause of surgical emergencies within this population. Prematurity and low birth weight are the leading risk factors for the development of NEC. The disease is characterized by bowel wall injury and/or necrosis, inflammation of the bowel, and subsequent invasion of the bowel wall with gut microbes leading to sepsis.
  • Mesenteric ischemia is an acute or chronic condition affecting the digestive tract, in which the blood supply to the digestive tract is decreased. Acute mesenteric ischemia occurs suddenly as a result of a blockage to the flow if oxygen-rich blood and can cause permanent damage to the intestines. Chronic mesenteric ischemia occurs gradually and from narrowing in one or more of the arteries supplying blood to the intestines. Symptoms of mesenteric ischemia include, for example, pain after eating, change in bowel movements, diarrhea, rectal bleeding, constipation, bloating, nausea, vomiting, and weight loss. Inflammation and injury to the intestines can result from the inadequate blood supply.
  • Crohn's disease is a chronic inflammatory disease that may affect any part of the gastrointestinal tract.
  • the inflammation can cause pain, severe diarrhea, fatigue, weight loss, and malnutrition.
  • Complications outside of the digestive tract that may occur in Crohn's disease include, for example, anemia, skin rashes, arthritis, and inflammation of the eye.
  • Crohn's disease can be debilitating and may lead to life-threatening complications. Bowel obstruction can occur, and subjects with Crohn's disease are at a greater risk for developing cancer of the gastrointestinal tract.
  • Ulcerative colitis is a chronic disease that causes inflammation of the large intestine. Ulcers commonly occur on the inner lining of the large intestine. Symptoms of ulcerative colitis can include pain, severe diarrhea, rectal bleeding, nausea or loss of appetite, fever, anemia, weight loss, and nutritional deficiency. Joint pain, eye irritation, and rashes may also occur in subjects with ulcerative colitis. The symptoms typically occur intermittently with periods of mild or no symptoms between flares. Subjects with ulcerative colitis have an increased risk of colorectal cancer.
  • Lymphocytic colitis is a subtype of microscopic colitis, and is a condition that causes inflammation of the colon. Symptoms of lymphocytic colitis include, for example, abdominal pain, cramping, and diarrhea that is continuous or episodic.
  • Celiac disease is an autoimmune disease, in which the immune system mounts a response to the presence of the gluten protein.
  • the immune response attacks the micro-villi that line the small intestine, and causes inflammation in the small intestine.
  • the intestinal damage can lead to diarrhea, fatigue, weight loss, malabsorption, bloating, mouth ulcers, and anemia. Lactose intolerance can also develop as a result to the damage to the intestines.
  • Celiac disease leads to an increased risk for adenocarcinoma and lymphoma.
  • the associated malabsorption can lead to a number of additional symptoms, including abnormal coagulation, and osteopenia. Additional symptoms of celiac disease include dermatitis herpetiformis, growth failure, puberty delay, and pregnancy complications.
  • Behcet's disease is a chronic, autoimmune, autoinflammatory disorder, which is systemic. Symptoms include, for example, oral ulcers, genital ulcers, inflammation of the eye, skin lesions, and arthritis. Inflammation of the uvea, retina, and/or iris of the eye may lead to blindness.
  • Additional symptoms can include blood clots, inflammation of the central nervous system, and inflammation and ulceration throughout the digestive tract.
  • the inflammation of the digestive tract may lead to abdominal pain, diarrhea, lack of appetite, weight loss, and bleeding of the rectum.
  • Rheumatoid arthritis is a chronic inflammatory disorder that can affect joints and other body systems, including the skin, eyes, lungs, heart, and blood vessels. Symptoms of rheumatoid arthritis can include warm, swollen, and painful joints. The associated synovitis can cause tethering of tissue, which leads to loss of movement of the joint, and erosion of the joint surface, causing deformity. Subjects with rheumatoid arthritis commonly develop rheumatoid nodules, which are due to a type of inflammatory reaction known to pathologists as a necrotizing granuloma.
  • Vasculitis, pyoderma gangrenosum, thinning of the skin, palmar erythema, and erythema nodosum are also skin manifestations of rheumatoid arthritis.
  • Symptoms of the lungs can include fibrosis, pleural effusions, and inflammation of the lungs.
  • Cardiac symptoms can include atherosclerosis, myocardial infarction, stroke, pericarditis, endocarditis, fibrosis, and inflammation surrounding the heart. Renal amyloidosis can occur, due to chronic inflammation.
  • Psoriasis is an autoimmune disease that is characterized by abnormal patches of skin.
  • the affected patches of skin are typically red, scaly, and itchy. Koeber phenomenon can occur, due to psoriatic changes of the skin.
  • Psoriasis vulgaris also known as chronic stationary psoriasis or plaque-like psoriasis
  • Psoriatic arthritis is a form of chronic inflammatory arthritis, and frequently occurs in combination with psoriasis of the nails and skin. Psoriatic arthritis can affect the joints of the fingers, toes, hips, knees, spine, and sacroiliac joint.
  • Autoimmune thyroid disease is a chronic inflammatory disorder of the thyroid gland. This disease can also affect the hormones produced by the thyroid gland, such as Triiodothyronine (T3), thyroxine (T4), and thyroid stimulating hormone (TSH). Autoimmune thyroid disease can cause hyperthyroidism, which leads to excessive sweating, rapid heart rate, anxiety, tremors, fatigue, difficulty sleeping, sudden weight loss, and protruding eyes.
  • T3 Triiodothyronine
  • T4 thyroxine
  • TSH thyroid stimulating hormone
  • Autoimmune thyroid disease can also cause hypothyroidism, which leads to weight gain, fatigue, dry skin, hair loss, intolerance to cold, and constipation. Goiters may be present with autoimmune thyroid disease. Grave's disease and Hashimoto's disease are forms of autoimmune thyroid disease.
  • oxysterol therapy it would be beneficial to administer oxysterol therapy to subjects who suffer from necrotizing enterocolitis, mesenteric ischemia, inflammatory bowel diseases including Crohn's disease and ulcerative colitis, lymphocytic colitis, Celiac disease, Behcet's disease, rheumatoid arthritis, psoriasis, autoimmune thyroid disease, as well as other diseases or disorders associated with inflammation that are known in the art.
  • Methods of treatment may include any number of modes of administering the disclosed oxysterol or composition.
  • Modes of administration may include tablets, pills, dragees, hard and soft gel capsules, granules, pellets, aqueous, lipid, oily or other solutions, emulsions such as oil-in-water emulsions, liposomes, aqueous or oily suspensions, syrups, elixirs, solid emulsions, solid dispersions or dispersible powders.
  • the agent may be admixed with commonly known and used adjuvants and excipients such as for example, gum arabic, talcum, starch, sugars (such as, e.g., mannitose, methyl cellulose, lactose), gelatin, surface-active agents, magnesium stearate, aqueous or non-aqueous solvents, paraffin derivatives, cross-linking agents, dispersants, emulsifiers, lubricants, conserving agents, flavoring agents (e.g., ethereal oils), solubility enhancers (e.g., benzyl benzoate or benzyl alcohol) or bioavailability enhancers (e.g. Gelucire®).
  • the agent may also be dispersed in a microparticle, e.g. a nanoparticulate composition. Any formulation or preparation described herein may or may not contain carbohydrates.
  • the agent can be dissolved or suspended in a physiologically acceptable diluent, such as, e.g., water, buffer, oils with or without solubilizers, surface-active agents, dispersants, or emulsifiers.
  • a physiologically acceptable diluent such as, e.g., water, buffer, oils with or without solubilizers, surface-active agents, dispersants, or emulsifiers.
  • Suitable oils include, for example, olive oil, peanut oil, cottonseed oil, soybean oil, castor oil, and sesame oil.
  • the agent can be in the form of an aqueous, lipid, oily or other kind of solution or suspension or even administered in the form of liposomes or nano-suspensions.
  • Other formulations include INTRALIPID® 20% (Baxter Healthcare Corp., Deerfield, Ill.) and SMOFLIPID® (Fresenius Kabi, Bad Homburg vor derric, Germany), for example.
  • one or more oxysterol compounds may be administered in a composition comprising human breast milk.
  • the human breast milk may thus be administered orally to a subject in need of oxysterol therapy.
  • the human breast milk may be further supplemented with oxysterols in addition to oxysterols that are naturally present in human breast milk.
  • the oxysterols used for supplementation may be higher doses of one or more oxysterols already present or they may be one or more oxysterols not found to be naturally occurring in human breast milk.
  • the oxysterols may be 20 ⁇ -hydroxycholesterol and/or 24-hydroxycholesterol.
  • one or more oxysterols may be administered in a composition comprising infant formula (e.g., the infant formula may further comprise at least one oxysterol).
  • infant formula is a manufactured food which purports to be or is represented for special dietary use solely as a food for infants by reason of its simulation of human milk or its suitability as a complete or partial substitute for human milk. The infant formula may thus be administered orally to a subject in need of oxysterol therapy.
  • human breast milk or infant formula comprising at least one oxysterol may be administered to prematurely born infants, regardless of suspected or known inflammatory disease or disorder. Because oxysterols can be used to augment NF ⁇ B activation and TH17 polarization, breast milk or infant formula supplemented with additional amounts of oxysterols may be beneficial for reducing inflammation and/or inflammation related damage in infants with inflammatory diseases or disorders.
  • Infant formula which may be suitable for the methods described herein include, but are not limited to, milk-based formula (for example, SIMILAC®, ENFAMIL®, or GERBER GOOD START®), soy-based formula or lactose-free (for example, SIMILAC SOY ISOMIL®, ENFAMIL PROSOBEE®, GERBER GOOD START SOY®), partially or extensively hydrolyzed formulas (for example, ENFAMIL GENTLEASE®, NUTRAMIGEN®), and formula specially designed for prematurely born infants (for example, NEOSURE®, ENFACARE®).
  • milk-based formula for example, SIMILAC®, ENFAMIL®, or GERBER GOOD START®
  • soy-based formula or lactose-free for example, SIMILAC SOY ISOMIL®, ENFAMIL PROSOBEE®, GERBER GOOD START SOY®
  • partially or extensively hydrolyzed formulas for example, ENFAMIL GENTLEASE®, NUTRAMIGEN®
  • Additional therapeutic agent(s) may be administered simultaneously or sequentially with the disclosed compounds and compositions. Sequential administration includes administration before or after the disclosed compounds and compositions. In some embodiments, the additional therapeutic agent or agents may be administered in the same composition as the disclosed compounds. In other embodiments, there may be an interval of time between administration of the additional therapeutic agent and the disclosed compounds. In some embodiments, administration of an additional therapeutic agent with a disclosed compound may allow lower doses of the other therapeutic agents and/or administration at less frequent intervals. When used in combination with one or more other active ingredients, the compounds of the present invention and the other active ingredients may be used in lower doses than when each is used singly. Accordingly, the pharmaceutical compositions of the present invention include those that contain one or more other active ingredients, in addition to an oxysterol. The above combinations include combinations of a compound of the present invention not only with one other active compound, but also with two or more other active compounds.
  • the oxysterol can be combined with one or more anti-inflammatory agents or immunosuppressive agents (also referred to as “immunosuppressants”), a variety of which are known in the art.
  • the oxysterol may be administered in combination with corticosteroids (e.g., prednisone and fluticasone), non-steroidal anti-inflammatory drugs (NSAIDs) (e.g., aspirin, ibuprofen, and naproxen), disease-modifying antirheumatic drugs (DMARDs) (e.g., methotrexate, sulfasalazine, leflunomide, azathioprine, and cyclophosphamide), biologic drugs (e.g., infliximab, etanercept, adalimumab, certolizumab, golimumab, abatacept, tocilizumab, and rituximab), alkylating agents,
  • oxysterols can be combined with a variety of antibiotics.
  • the antibiotics include, but are not limited to, ampicillin, gentamycin, zosyn, vancomycin, or a combination thereof.
  • the subject would ingest nothing by mouth for 10 days after abdominal x-rays have been normalized.
  • oxysterols can be combined with immunosuppressive therapies, especially during disease flare-ups, for example.
  • Immunosuppressive therapies include those described above, including corticosteroids, azathioprine (IMURAN®), mercaptopurine, or a combination thereof.
  • Selective biologic agents can also be coadministered with oxysterols and include, but are not limited to infliximab (REMICADE®), adalimumab (HUMIRA®), and certolizumab pegol (CIMZIA®).
  • oxysterols may be directly applied to the skin lesions, combined with, for example, corticosteroids, vitamin D, retinoids, phototherapy, immunosuppressants (e.g., methotrexate or cyclosporine), or a combination thereof.
  • corticosteroids for example, corticosteroids, vitamin D, retinoids, phototherapy, immunosuppressants (e.g., methotrexate or cyclosporine), or a combination thereof.
  • immunosuppressants e.g., methotrexate or cyclosporine
  • kits comprising the compound (e.g., one or more oxysterols), a systemic or topical composition described above, or both; and information, instructions, or both, that use of the kit will provide treatment for medical conditions in mammals (particularly humans).
  • the information and instructions may be in the form of words, pictures, or both, and the like.
  • the kit may include the medicament, a composition, or both; and information, instructions, or both, regarding methods of application of medicament, or of composition, preferably with the benefit of treating or preventing medical conditions in mammals (e.g., humans).
  • the levels of macrophage/NF ⁇ B or T cell/TH17 may be evaluated using suitable method known in the art for measuring such proteins.
  • oligodendrocyte cell numbers in the brain is critical to determining the impact of oxysterol therapy.
  • Stereology is a useful research tool used by neuroscientists to provide accurate and unbiased estimates of cell numbers within specified brain regions.
  • the number of oligodendrocyte numbers is determined using Stereo InvestigatorTM software (MBF Bioscience) and a Zeiss Axiolmager M2 motorized fluorescent microscope with Apotome structured illumination.
  • MFS Bioscience Stereo InvestigatorTM software
  • a Zeiss Axiolmager M2 motorized fluorescent microscope with Apotome structured illumination The detection of differences in locomotor function is an important tool for the assessment of the severity of many conditions that affect the central nervous system (CNS), peripheral nervous system (PNS) and skeletal structures or muscles.
  • a gait analysis system such as the CatWalkTM XT, provides automatic and sensitive detection of a full range of parameters related to footprints and the dynamics of gait in animal testing. Methods for determining the impact of oxysterol therapy are further described in, e.g., International Patent Application Publication WO 2016/007762.
  • 20 ⁇ -Hydroxycholesterol (20HC) and 22 ⁇ -hydroxycholesterol were purchased commercially from Sigma-Aldrich. All oxysterols were resuspended in DMSO at 12 mM for use in cell culture systems. In vivo studies utilized oxysterols freshly dissolved in corn oil prior to administration.
  • This example demonstrates the efficacy of 25-hydroxycholesterol therapy.
  • Perinatal bowel perforation is a common complication of premature birth and is strongly linked to myelin injury and cerebral palsy.
  • a mouse model of perinatal white matter injury was developed. The model simulates a perinatal bowel perforation and sepsis by injection of donor cecal contents into the peritoneal cavity of neonatal mice on postnatal day 5. Using this model, the efficacy of 25-hydroxycholesterol in reversing white matter injury was tested. Mice treated with 100 mg/kg/day of 25-hydroxycholesterol for five days showed improved myelin integrity, compared to septic injured mice that received a vehicle control ( FIG. 1A ). Breast-milk associated 25-HC reversed diffuse white matter injury.
  • oligodendrocyte marker CC1 40 ⁇ high power fields (PHF) were imaged.
  • PHF high power fields
  • This example demonstrates mass spectroscopy detection of oxysterols in human breast milk.
  • Mass spectrometry assays were employed to identify oxysterols that are present in human breast milk. Samples of freshly pumped human breast milk were obtained. Half of each sample was immediately frozen on dry ice and stored at ⁇ 80° C. The remainder was stored at 4° C. for six days before analysis. Breast milk samples were then analyzed by mass spectrometry and compared to oxysterols standards ( FIGS. 2A ,B). While 20 ⁇ -hydroxycholesterol was not detected in human breast milk, abundant levels of 24-hydroxycholesterol (24HC), 25-hydroxycholesterol (25HC), and 27-hydroxycholesterol (27HC) were observed ( FIG. 3 ).
  • This example demonstrates liquid chromatography tandem mass spectrometry detection of oxysterols in human breast milk.
  • Liquid chromatography tandem mass spectrometry was employed to identify oxysterols that are present in human breast milk.
  • the samples were from freshly pumped human breast milk from mothers who recently delivered healthy, full-term infants. A portion of the milk was frozen immediately, and a portion was stored at 40° C. for 48 hours prior to freezing to determine oxysterol stability in milk.
  • pasteurized human breast milk from a donor breast milk bank was also analyzed. While 20 ⁇ -hydroxycholesterol was not detected in any of the milk samples, 22-hydroxycholesterol (22HC), 24-hydroxycholesterol (24HC), 25-hydroxycholesterol (25HC), and 27-hydroxycholesterol (27HC) were detected in multiple samples ( FIG. 4 ). Storage at 40° C. for 48 did not impact levels of oxysterols.
  • This example demonstrates in vitro oligodendrocyte differentiation from neural stem cells with breast milk-associated 24-hydroxycholesterol and 25-hydroxycholesterol.
  • This example demonstrates an in vitro screening method for oligodendrogenesis.
  • HPF high power field
  • Splenocytes where harvested from postnatal day 12 mice. Monocytes were negatively selected using anti-CD3, CD19 magnetic beads. Cells were treated with vehicle control (DMSO) or 1 ⁇ m 20HC for 24 hours. After exposure to 20HC, monocytes were treated with 500 ng/mL of lipopolysaccharide (LPS) to activate the TLR4 receptor and activate NF- ⁇ B. Compared to control cells, LPS-treated cells degraded I- ⁇ B and phosphorylated p65 consistent with NF- ⁇ B activation ( FIG. 7 ). I- ⁇ B degradation and phosphorylation of p65 was blocked in 20HC-treated monocytes.
  • DMSO vehicle control
  • LPS lipopolysaccharide
  • CD4 T cells were isolated from rodent spleen tissue using CD4 magnetic beads.
  • CD4+ lymphocytes were cultured on plates coated with anti-CD3 antibody and anti-CD28 antibodies in the presence of rTGFb, rIL-6, and rIL-23 for 5 days.
  • the cells were stimulated with PMA, ionomycin, and Brefeldin A. The cells were then analyzed for IL-17 production ( FIG.
  • PMA 50 ng/ml
  • Ionomycin 500 ng/ml
  • Brefeldin A (10 ⁇ g/ml) for last 3 h)
  • the LXR agonist GW3965 prevented TH17 polarization (2.6%).
  • Breast milk associated oxysterols 20HC and 24HC also prevented TH17 polarization (2.2% and 2.1% respectively).
  • 25HC promoted TH17 production at low doses (23.6%) and inhibited production at higher doses (2.7%).
  • mice with 20HC blocks the development of multiple sclerosis-like symptoms in an experimental allergic encephalitis (EAE) mouse model.
  • EAE was induced using myelin oligodendrocyte glycoprotein (MOG35-55) peptide using standard approaches (see, e.g., Bittner et al., J. Vis. Exp., 86: 51275 (2014); and Miller et al., Curr Protoc Immunol ., Unit-15.1 (2007)) in 15 wild-type 8 week old C57BL/6J mice.
  • TH17 T cell populations are pathogenic in the EAE model and have been implicated in multiple sclerosis (MS).
  • mice Seven mice (3 male, 4 female) proceeded without further intervention while 8 mice (3 female and 5 male) were given daily 125 ⁇ L subcutaneous injections of 20HC resuspended in corn oil (10 mg/mL) two days prior to EAE induction and through day 14, just prior to peak clinical severity. Mice were scored daily for the development of ascending paralysis that is indicative of the development of EAE. In vivo treatment of mice with 20HC (50 mg/kg/day) disrupted the development of MS-like symptoms in the EAE model, as shown in FIGS. 9A and 9B .
  • results of this example demonstrate that 20HC protects mice against the development of EAE, most likely by blocking TH17 T cell polarization in vivo.
  • Clause 1 A method of treating diseases or disorders related to inflammation in a subject in need thereof, the method comprising administering a therapeutically effective amount of at least one oxysterol.
  • Clause 2 The method of clause 1, wherein the oxysterol augments NF ⁇ B activation and TH17 polarization, thereby reducing inflammation in the subject.
  • Clause 3 The method of clause 1, wherein the oxysterol reduces TH17 polarization, thereby reducing inflammation in the subject.
  • Clause 7 The method of clause 1, wherein a combination of oxysterols is administered.
  • Clause 8 The method of clause 7, wherein the combination of oxysterols is 20 ⁇ -hydroxycholesterol, 24(R)-hydroxycholesterol, and 24(S)-hydroxycholesterol; or pharmaceutically acceptable salts thereof.
  • Clause 9 The method of clause 1, wherein the disease or disorder is selected from at least one of necrotizing enterocolitis, mesenteric ischemia, inflammatory bowel diseases including Crohn's disease and ulcerative colitis, lymphocytic colitis, Celiac disease, Behcet's disease, rheumatoid arthritis, psoriasis, and autoimmune thyroid disease.
  • Clause 11 The method of clause 1, wherein the oxysterol is administered in combination, simultaneously or sequentially, with an additional therapeutic agent.
  • Clause 14 The method of clause 12, wherein the disease is necrotizing enterocolitis.
  • Clause 15 The method of clause 11, wherein additional therapeutic agent is an immunosuppressive agent.
  • the immunosuppressive agent is selected from the group consisting of corticosteroids, Azathioprine (Imuran), mercaptopurine, infliximab, adalimumab, and certolizumab pegol, or a combination thereof.
  • Clause 17 The method of clause 16, wherein the disease being treated is Crohn's disease, ulcerative colitis, lymphocytic colitis, Celiac Disease, Behcet's disease, autoimmune thyroid disease, or rheumatoid arthritis.
  • Clause 18 The method of clause 11, wherein the additional therapeutic agent is a corticosteroid, vitamin D, a retinoid, phototherapy, and an immunosuppressant, or a combination thereof.
  • Clause 19 The method of clause 18, wherein the disease is psoriasis.
  • Clause 21 The method of clause 1, wherein the oxysterol is combined with a pharmaceutically acceptable carrier.
  • Clause 22 The method of clause 21, wherein the oxysterol and pharmaceutically acceptable carrier are administered orally, intravenously, or transdermally.
  • Clause 23 The method of clause 1, wherein the oxysterol is administered orally, intravenously, or transdermally.
  • a pharmaceutical composition comprising at least one oxysterol and at least one pharmaceutically acceptable carrier.
  • Clause 25 The pharmaceutical composition of clause 16, further comprising human breast milk.

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
US20220409632A1 (en) * 2014-07-09 2022-12-29 Duke University Compositions and methods for the repair of myelin
US12029742B2 (en) * 2014-07-09 2024-07-09 Duke University Compositions and methods for the repair of myelin

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